SU1471139A1 - Amplitude detector - Google Patents

Abstract

The invention relates to a pulse technique and can be used in devices for measuring the amplitude of periodic pulse signals under the conditions of distorting interference. The purpose of the invention is to improve the noise immunity, accuracy and expansion of the frequency range. The goal is achieved by introducing an amplitude detector containing an operational amplifier 1, an integrating circuit from diode 4 and a capacitor 6, an additional resistor 2 and a diode 3 connected between the input of a diode-capacitor circuit and a common bus. 2 Il.

Description

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Claims (1)

Claim An amplitude detector containing, before the operational amplifier, a diode-capacitor integrating circuit connected between the output of the operational amplifier and a common bus, the output of the diode-capacitor integrating circuit connected to the output bus of the device connected through resistors to a bias voltage source and an inverting input of the operational amplifier, respectively, moreover, both inputs of the operational amplifier are connected through resistors to a common bus, a non-inverting input of the operational amplifier through a resistor is connected an input bus, and a reset switch connected in parallel with ³³ capacitor, characterized i in that, in order to increase noise immunity, accuracy and extend the frequency range, it introduces additional resistor and a diode, wherein a further resistor connected between the output of the operational amplifier and the diode diodno1471139 ⁰ capacitor integrating circuit, and an additional diode between the input of the diode-capacitor circuit and a common mine.